1980128640

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{147331}}^1$

素因数の和:147360

約数の個数: 128

約数和(自身を含む): 7213374720

約数和(自身を除く): 5233246080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 147331, 294662, 441993, 589324, 736655, 883986, 1031317, 1178648, 1473310, 1767972, 2062634, 2209965, 2357296, 2946620, 3093951, 3535944, 4125268, 4419930, 4714592, 5156585, 5893240, 6187902, 7071888, 8250536, 8839860, 9429184, 10313170, 11786480, 12375804, 14143776, 15469755, 16501072, 17679720, 18858368, 20626340, 23572960, 24751608, 28287552, 30939510, 33002144, 35359440, 41252680, 47145920, 49503216, 56575104, 61879020, 66004288, 70718880, 82505360, 94291840, 99006432, 123758040, 132008576, 141437760, 165010720, 198012864, 247516080, 282875520, 330021440, 396025728, 495032160, 660042880, 990064320, 1980128640]

約数ペア:

[(1, 1980128640), (2, 990064320), (3, 660042880), (4, 495032160), (5, 396025728), (6, 330021440), (7, 282875520), (8, 247516080), (10, 198012864), (12, 165010720), (14, 141437760), (15, 132008576), (16, 123758040), (20, 99006432), (21, 94291840), (24, 82505360), (28, 70718880), (30, 66004288), (32, 61879020), (35, 56575104), (40, 49503216), (42, 47145920), (48, 41252680), (56, 35359440), (60, 33002144), (64, 30939510), (70, 28287552), (80, 24751608), (84, 23572960), (96, 20626340), (105, 18858368), (112, 17679720), (120, 16501072), (128, 15469755), (140, 14143776), (160, 12375804), (168, 11786480), (192, 10313170), (210, 9429184), (224, 8839860), (240, 8250536), (280, 7071888), (320, 6187902), (336, 5893240), (384, 5156585), (420, 4714592), (448, 4419930), (480, 4125268), (560, 3535944), (640, 3093951), (672, 2946620), (840, 2357296), (896, 2209965), (960, 2062634), (1120, 1767972), (1344, 1473310), (1680, 1178648), (1920, 1031317), (2240, 883986), (2688, 736655), (3360, 589324), (4480, 441993), (6720, 294662), (13440, 147331)]